The Isotta Fraschini Asso 750 "W" engine is fitted to the S.55. The 960hp maximum power from it is what gives the S.55 its speed of 280kph. An improved version is fitted to the Caproni Ca.90 which gives 1000hp. Then there is the Asso 1000 under development which will give 2000hp.
I might as well keep aircraft in the same thread so;
The Caproni Ca.90
www.airwar.ru/enc/bww1/ca90.html]From Here.[/url]
Ca.89 was one additional successful aircraft Of caproni, in the course of 8 years they were used in bombardment aviation of Italy. During this period Caproni proposed the construction of the aircraft, which, as it believed, could draw nearer the theory of the strategic bombings Of Guilio Douhet (A) the reality. This bomber was capable to bear almost 8 t of bombs up to the distance of 4 600 km with a velocity of 235 km/h. In order to satisfy these conditions by it it was required the total power of engine installation equal to 6 000 hp, it could ensure six 1000- strong engines Of isotta-Fraschini asso those established by tandem, with three two-bladed propellers from the front and three four bladed propellers from behind.
As in the case from Ca.79Q.d., the gigantic bomber Of caproni had a completely metal frame and wings “inverted” [sesquiplane] diagram. But it was differed from the aircraft of the series Of ca.73 in terms of substantially large spread it was wing (spread of lower it was wing - 46,35 m), which had the fabric covering, and they did not have the balanced ailerons. Two tandems of engines were established on the lower wing, while third pair was suspended above the fuselage from the steel tubular counters. Two pairs of the massive steel counters of streamlined shape, additionally braced with steel cables, supported upper wing. Cowlings of engines, nose, part it is wing, some parts of side walls of fuselage, pilot's seat and strut fairings were made from aluminum or duralumin alloy.
The fuselage with a length of 26,92 m completed by simpler tail construction, than to Ca.73, with one vertical keel and horizontal fin, which was located above the wake of lower wing. To each steel landing gear strut were attached two wheels with a diameter of 2,49 m, with the shock absorbers from the rubber rings. In this case the aircraft altitude reached 10,79 m.
The load of bombs with the weight of 7 983 kgf was located inside the fuselage in the center of gravity of construction and was discarded by electrical bomb release devices. In the bomb bay it was possible to fall on the small tunnel. Crew consisted of eight people: commander and copilot, that sit next, in the open cab, to the control levers of the fuel between them; radio operator, who sits behind them; bombardier- observer in to nose; upper pointer, which took away into its cab on the upper wing with the aid of the hinged stairs; two rear [strelkov], which governed machine guns both on the sides of fuselage and tailed ring mount of two machine guns; and lower pointer.
In order “to shelter” this flying fortress, to the period of building, Caproni it dismantled and it transported old, remained after the First World War, hangar for the dirigibles Of zeppelin, from the previous Austro-Hungarian base into Pola (now Pulje in Croatia) and again assembled the hangar into Taliedo. Here, under elder engineer Dino's administration Guiliani, was completed building Ca.90P.B. in 1929 and October 13 the same year was executed the first test flight. Pilot, Domenico Of antonini, reported, that aircraft handling put outting itself, after adding that “Ca.90 behaves similarly to single-engine aircraft”.
This comparison Of ca.90P.B with the single-engine aircraft encouraged. The empty weight was equal to 15- TI to tons, and its normal takeoff weight was equal by 30- TI to tons. Total area it is wing it composed 562,6 [m]2, Ca.90P.B was capable to drag this load to the height of 4 480 m and to fly with a speed of up to 235 km/h. These characteristics were partly even better than the most optimistic expectations Of gianni Of caproni, and soon about these possibilities of aircraft it became widely known.
Twenty second February 1930 Of antonini it completed a series of flights to Ca.90P.B after beating the record of the height of 2 000 m with 10 t of load and then established new, after raising the same load to height 3 230 m. this flight it also established the endurance record of flight for this weight - 3 hours 31 minute. Toward the end this day Of ca.90P.B it established the officially three world records of height.
However, in spite of such achievements, Italian servicemen so never and yielded to initial enthusiasm and the prototype Of ca.90P.B was built in the sole copy. In spite of enormous load capacity and to the fact that it was the largest military aircraft in the world in 1930, Ca.90P.B was the actually increased version of the successful construction of the bomber of 1925. By 1930 aircraft-construction skill already passed this stage, after making Ca.90P.B that become obsolete still before it it descended from the drawing board.
The Regia Aeronautica has plans to purchase 1-2 squadrons for use as a long-range reconnaissance aircraft. Something that the Ca.90 can do better than other heavier than air craft.
Type Ca.90P.B
Span of wing, m 46.35
Length, m 26.92
Height, m 10.79
Wing area, [m]2 562.60
Mass, the kgf
the empty aircraft 15000
the normal takeoff 30000
Type of the engine 6 PD Of isotta Of fraschini Of asso
Power, hp. 6 X 1000
Maximum speed, the km/h 235
Cruising speed, the km/h 204
Service range, km 750
The service ceiling, m 3500
Crew 4
Armament: six 7.7- mm of the machine guns
Bomb load - 7 983 kgf it is normal, maximally to 10000 kgf
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